B22F 5/08
Manufacture of workpieces or articles from metallic powder characterised by the special
Official title: of toothed articles, e.g. gear wheels; of cam discs
B22F5/08 (Manufacture of workpieces or articles from metallic powder characterised by the special) appears on 234 US grants and 251 published applications in this corpus.
Search patents in B22F- Granted patents
- 234
- Published applications
- 251
- Assignees
- 161
- Inventors
- 547
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 11 | 0 |
| 2000 | 14 | 0 |
| 2001 | 5 | 0 |
| 2002 | 5 | 1 |
| 2003 | 4 | 4 |
| 2004 | 3 | 9 |
| 2005 | 2 | 6 |
| 2006 | 4 | 4 |
| 2007 | 7 | 6 |
| 2008 | 2 | 14 |
| 2009 | 3 | 6 |
| 2010 | 6 | 8 |
| 2011 | 4 | 6 |
| 2012 | 6 | 11 |
| 2013 | 3 | 5 |
| 2014 | 10 | 7 |
| 2015 | 3 | 9 |
| 2016 | 9 | 15 |
| 2017 | 6 | 8 |
| 2018 | 6 | 13 |
| 2019 | 8 | 18 |
| 2020 | 8 | 14 |
| 2021 | 12 | 25 |
| 2022 | 10 | 32 |
| 2023 | 23 | 8 |
| 2024 | 22 | 12 |
| 2025 | 11 | 6 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Variable diffusion carburizing method17 Feb 2026US 12,553,118 B2GKN Sinter Metals, LLC
- Method for producing a sintered component30 Dec 2025US 12,508,649 B2Schunk Sintermetalltechnik GmbH
- Sintered member and electromagnetic coupling19 Aug 2025US 12,392,382 B2Sumitomo Electric Sintered Alloy, Ltd.
- Method for producing a joint member, and a method for producing an angular position holding apparatus by using a joint member produced by the producing method19 Aug 2025US 12,392,384 B2Origin Company, Limited
- Acoustical dampening powder metal parts22 Jul 2025US 12,365,029 B2Keystone Powdered Metal Company
- Torsionally compliant gear24 Sep 2026US 2026/0287050 A1Lockheed Martin Corporation
- Method for manufacturing strain wave gear10 Sep 2026US 2026/0264145 A1Iljin Global Holdings Co., Ltd.
- Producing Rotationally Symmetric Magnetic Sheets27 Aug 2026US 2026/0249352 A1Siemens Aktiengesellschaft
- Additively manufactured gears for aerospace and defense7 May 2026US 2026/0126106 A1Lockheed Martin Corporation
- Extruder driver gears and related assemblies and methods including extruder driver gears19 Jun 2025US 2025/0196440 A1US Synthetic Corporation
Most cited
By later US patents
- Apparatus and method for forming powder metal gears46US 6,517,772 B1Federal-Mogul World Wide, Inc. · 2003
- Powder compacting apparatus and method of forming helical gear wheel using said powder compacting apparatus36US 6,156,265 ASumitomo Electric Industries, Ltd. · 2000
- Gear wheels rolled from powder metal blanks and method of manufacture31US 5,711,187 AFormflo Limited · 1998
- Method of and system for manufacturing powder moldings30US 5,378,416 ANissan Motor Co., Ltd. · 1995
- Powder metal crown gear forming process27US 4,111,031 AGeneral Motors Corporation · 1978